Malaysia's central bank warned the country's Government back in 2014 that the debt-ridden state investment company 1Malaysia Development Bhd posed risks for the country's financial system, Bloomberg reports. The governor of Bank Negara Malaysia, Zeb Akhtar Aziz, said the bank sent two memos to the finance ministry, flagging the dangers in 1MDB's mounting debt. Bank Negara Malaysia has tried unsuccessfully to have criminal charges brought against 1MDB, whose advisory board is chaired by Malaysian Prime Minister Najib Razak, for allegedly making false disclosures about its overseas investments. ANZ has been caught up in the scandal because Najib Razak held an account at AmBank, part owned by ANZ, in which large unexplained amounts were deposited. Portugal's Finance Minister has been forced to defend the country's banking system against charges that it is too closely aligned to the troubled Angolan economy, CNBC reports. Angola is a former Portuguese colony and the countries have maintained strong cultural and economic links, including ownership of a number of Portuguese banks by Angolan companies. The European Central Bank expressed concern after Angola, an oil exporter hit by the collapse in crude oil prices, approached the International Monetary Fund for financial aid earlier this month. Portuguese Finance Minister Mario Centeno said the Angolan risk was manageable. The market for green bonds expanded strongly in Q1 2016, according to a BNP Paribas analysts' report. An amount equivalent to US$16.3 billion of green bonds was issued in the first quarter of 2016, almost three times issuance in Q1 2015. China was the main driver of the expansion, accounting for half of Q1 2016's issuance. In the rates space (defined by BNP Paribas as "those [bonds] issued by agencies, development banks, supranationals, and local and regional governments"), Q1 2016 green bond issuance (an amount equivalent to USD 3.5 billion) was US$450 million higher than in Q1 2015, primarily due to supply from development banks and regional governments.